REVIEW ARTICLE
Random Response of Rotor System on the Filtered Gaussian White Noise Earthquake Ground Acceleration
Wang Zheng-Hao*, Xiong Xing-Rong, Meng Qing-Xin, Yang Xing-Tao, Xi Qing-Tai
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 214
Last Page: 218
Publisher Id: TOMEJ-8-214
DOI: 10.2174/1874155X01408010214
Article History:
Received Date: 25/307/2014Revision Received Date: 04/08/2014
Acceptance Date: 04/08/2014
Electronic publication date: 16/9/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
With the pseudo-excitation method, the random response of a cantilever double-disc rotor system under the filtered Gaussian white noise earthquake ground accelerated random excitations, is analyzed by computer numerical simulation. The results show that the random response is relatively strong during an earthquake of the horizontal direction while the cantilever disk vibration is the strongest. The inherent frequency of the site soil has a great effect on the random response in the horizontal direction, while the system frequency characteristics have a great effect on the random response in the vertical direction. The rotor imbalance random excitation intensity does not change the peak frequency of the response spectrum. However, the system random vibration response is large when the excitation intensity is in a high level state. It has a great impact on the low and high frequency of non-cantilever disc, the low frequency of the cantilever disc, the high-frequency of non-cantilever bearing vertical vibration and the high-frequency of cantilever bearing the intensity around the high-frequency random response.
